20957688

素因数分解:

$2^3\times 3^2\times {\mathrm{37}}^1\times {\mathrm{7867}}^1$

素因数の和:7916

約数の個数: 48

約数和(自身を含む): 58301880

約数和(自身を除く): 37344192

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 37, 72, 74, 111, 148, 222, 296, 333, 444, 666, 888, 1332, 2664, 7867, 15734, 23601, 31468, 47202, 62936, 70803, 94404, 141606, 188808, 283212, 291079, 566424, 582158, 873237, 1164316, 1746474, 2328632, 2619711, 3492948, 5239422, 6985896, 10478844, 20957688]

約数ペア:

[(1, 20957688), (2, 10478844), (3, 6985896), (4, 5239422), (6, 3492948), (8, 2619711), (9, 2328632), (12, 1746474), (18, 1164316), (24, 873237), (36, 582158), (37, 566424), (72, 291079), (74, 283212), (111, 188808), (148, 141606), (222, 94404), (296, 70803), (333, 62936), (444, 47202), (666, 31468), (888, 23601), (1332, 15734), (2664, 7867)]